Xq12-q13.3 duplication syndrome

Xq12-q13.3 duplication syndrome is a rare chromosomal anomaly syndrome, resulting from the partial duplication of the long arm of chromosome X, characterized by global developmental delay, autistic behavior, microcephaly and facial dysmorphism (including down-slanting palpebral fissures, depressed nasal bridge, anteverted nares, long philtrum, down-slanting corners of the mouth). Seizures have also been reported in some patients.



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Matched Phenotype  Gene  Mutation  MeSH
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PMID
(PMCID)
        

Phenotype(s) retrieved from Orphanet

    Total: 37

HPO ID Term Frequency
HP:0000028 Cryptorchidism Very frequent (99-80%)
HP:0000232 Everted lower lip vermilion Very frequent (99-80%)
HP:0000252 Microcephaly Very frequent (99-80%)
HP:0000286 Epicanthus Very frequent (99-80%)
HP:0000316 Hypertelorism Very frequent (99-80%)
HP:0000325 Triangular face Very frequent (99-80%)
HP:0000543 Optic disc pallor Very frequent (99-80%)
HP:0000649 Abnormality of visual evoked potentials Very frequent (99-80%)
HP:0000708 Behavioral abnormality Very frequent (99-80%)
HP:0000713 Agitation Very frequent (99-80%)
HP:0000729 Autistic behavior Very frequent (99-80%)
HP:0000750 Delayed speech and language development Very frequent (99-80%)
HP:0000767 Pectus excavatum Very frequent (99-80%)
HP:0000964 Eczema Very frequent (99-80%)
HP:0001054 Numerous nevi Very frequent (99-80%)
HP:0001249 Intellectual disability Very frequent (99-80%)
HP:0001252 Muscular hypotonia Very frequent (99-80%)
HP:0001263 Global developmental delay Very frequent (99-80%)
HP:0002079 Hypoplasia of the corpus callosum Very frequent (99-80%)
HP:0002119 Ventriculomegaly Very frequent (99-80%)
HP:0002521 Hypsarrhythmia Very frequent (99-80%)
HP:0003236 Elevated serum creatine kinase Very frequent (99-80%)
HP:0003282 Low alkaline phosphatase Very frequent (99-80%)
HP:0003700 Generalized amyotrophy Very frequent (99-80%)
HP:0004322 Short stature Very frequent (99-80%)
HP:0004691 2-3 toe syndactyly Very frequent (99-80%)
HP:0005280 Depressed nasal bridge Very frequent (99-80%)
HP:0007328 Impaired pain sensation Very frequent (99-80%)
HP:0009908 Anterior creases of earlobe Very frequent (99-80%)
HP:0010554 Cutaneous finger syndactyly Very frequent (99-80%)
HP:0011265 Cleft earlobe Very frequent (99-80%)
HP:0011343 Moderate global developmental delay Very frequent (99-80%)
HP:0012751 Abnormal basal ganglia MRI signal intensity Very frequent (99-80%)
HP:0030353 Decreased serum insulin-like growth factor 1 Very frequent (99-80%)
HP:0100739 Bulimia Very frequent (99-80%)
HP:0002123 Generalized myoclonic seizures Frequent (79-30%)
HP:0002788 Recurrent upper respiratory tract infections Frequent (79-30%)


Phenotype(s) retrieved from case reports

    Total: 0

HPO ID Term # of case reports


Causative gene(s) retrieved from Orphanet

    Total: 0

Gene Symbol Gene Name Entrez Gene ID